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Four green DDR4 UDIMM sticks without heat spreaders

NEMIX RAM

NEMIX RAM 128GB 4x32GB DDR4 3200 CL22 2Rx8 1.2V UDIMM memory upgrade for Supermicro X12STE-F X12STD-F

SKU CH-DCZG-JRH86

A 128 GB DDR4 kit of four 32 GB UDIMMs running at 3200 MHz CL22, 1.2 V, 2Rx8, validated for Supermicro X12STE-F and X12STD-F motherboards

  • Capacity128GB (4 x 32GB)
  • Type288-Pin DDR4 UDIMM
  • SpeedDDR4 3200 (PC4 25600)
  • CAS LatencyCL22
  • Voltage1.20V
  • ECCNo

Size 128GB 4X32GB

  • 128 GB total capacity from four 32 GB modules for heavy multitasking
  • DDR4-3200 CL22 1.20 V JEDEC timing runs at rated speed without tuning
  • 2Rx8 unbuffered UDIMM matches Supermicro X12STE-F / X12STD-F population rules exactly
  • Major OEM Samsung Micron Hynix chips tested for stability at rated specifications
  • Lifetime replacement warranty with US-based technical support included

Exact-Match 128GB DDR4-3200 Kit

This 128GB kit contains four 32GB DDR4 UDIMM modules rated at 3200MHz with CL22 timing and 1.2V operation. It is built as a direct upgrade for Supermicro X12STE-F and X12STD-F motherboards requiring non-ECC unbuffered memory. The 2Rx8 rank configuration matches the memory controller expectations for full-capacity recognition. Builders expanding these specific workstations or servers will find the spec alignment straightforward.

Verified Fitment for Supermicro Boards

The kit uses the 288-pin UDIMM form factor required by the target motherboards, avoiding incompatibility with ECC registered or SODIMM alternatives. Major OEM chips from Samsung, Micron, or Hynix are tested at the rated speed, timing, and voltage for stability. Users should still consult their system manual for approved DIMM population order before installation. The package includes only the four memory modules with no additional accessories or software.

Unbuffered Design with Lifetime Support

Without heat spreaders, the low-profile modules fit tight DIMM spacing common in dense server chassis. Unbuffered construction keeps latency low for desktop and workstation workloads on supported platforms. The product carries a lifetime replacement warranty and free US-based technical support for troubleshooting. Buyers needing ECC error correction or registered signal buffering for other Supermicro platforms must select a different module type.

Highlights

  • 128 GB total capacity from four 32 GB modules for heavy multitasking
  • DDR4-3200 CL22 1.20 V JEDEC timing runs at rated speed without tuning
  • 2Rx8 unbuffered UDIMM matches Supermicro X12STE-F / X12STD-F population rules exactly
  • Major OEM Samsung Micron Hynix chips tested for stability at rated specifications
  • Lifetime replacement warranty with US-based technical support included

Specifications

BrandNEMIX RAM
SeriesNEMIX RAM Original Series Memory
ModelDDR4 Non-ECC Unbuffered UDIMM Memory
Part NumberMD25600-328K4
Capacity128GB (4 x 32GB)
Type288-Pin DDR4 UDIMM
SpeedDDR4 3200 (PC4 25600)
CAS LatencyCL22
Voltage1.20V
ECCNo
Buffered/RegisteredUnbuffered
Rank2Rx8
ChipsetMajor OEM Samsung, Micron, Hynix
Heat SpreaderNo
Compatible SystemSupermicro
FeaturesDDR4 Non-ECC Unbuffered UDIMM Motherboard Compatible
Package Content128GB 4X32GB DDR4 3200MHz PC4-25600 2Rx8 1.2V 288-PIN Non-ECC UDIMM KIT

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Questions about this item

Will the four 32 GB modules need any firmware updates or periodic re-seating over time?

No firmware is involved; the UDIMM modules are passive components. Once seated correctly in the Supermicro X12STE-F or X12STD-F slots they require no further maintenance.

What capacity ceiling will I hit first when all four DIMMs are populated on the X12STE-F or X12STD-F?

The kit provides the full 128 GB (4 × 32 GB) that the board's four UDIMM slots can accept, so the slot count is the first hard limit.

How much extra heat or fan noise should I expect when the kit runs at 3200 MHz CL22 all day?

The modules operate at the standard 1.20 V without heat spreaders, adding only modest warmth that the existing chassis airflow handles without audible fan-speed increases.

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